Safety-lock for car-doors.



M. BAZILLE. SAFETY LOOK FOR GAR nouns. APPLICATION FILED APR. 10, 1912.

Patented Feb., 9, 1915.

To (swim a a was Be it lmown'that I v Beam, a citizen of the Republic ofFrance, residing at 13 Rue Uubain An'gers, Maine-et-Loire, in theRepublic of France, locksmith, have invented certain new and usefulImprovements in Safety-Locks for Car-Doors, of which the following is aspecification.

his invention rela'tes'to safety locks for car-doors, an'dhas for itsobject to so construct a look of this character that it will preventchildren from Opening the door from the inside. For this purpose, thelock is combined with a locking device which normally locks the innerhandle or'one of its members and which only releases the handle when anunlocking member located in the carriage at a heightwhich cannot bereached by children has een operated. Furtherinore, such lock is sofitted as to allow ofthe door being easily e outside as well as from theinsid by travelers, while not permitting the door to be acc identallyopened by vibration, jarring, or the like. The safety closure isobtained solely by the closing motion of the door and the properposition of the closing members can easily be verified from the insideas well as from the outside.

()ne embodiment of my invention is shown, by way of example in theaccompanying drawings, in which Figure 1 is an elevation ofapart of theinside of a car-door provided with the lock according to this.invention. Fig. 2 is a detail vertical section through the plane of thelock spindle. Fig. 3 is an elevation ofthe interior of the lock, theinner plate of the lock bein' removed, and Fig. 4 IS a vertical section0% outside of the door.

Such lock comprises a plate 1 squarely bent to fit the inner angle ofthe door 2; on such plate is guided an inwardly curved latch 3 which ispushed outwardly by the sprin 4. Such latch can be pushed inwardly eiter by the member5 of the outer handle 6 or by a" two arm lever 7 whichis connected with the spindle 8' of'the inner handle 9. The

guided between two lugs 13 integral with the Wemnesramca roe GAE-DOORS.

, a e e giihaezi md ei ni W t"- Plate-land locat d close to the path ofth .while'the other hand "a locking device located at the Patented Fa.9,1915.

ing t e rod 11. The upper end of the latter is pivoted to. one of thearms of a bell crank le er 4 he opposi e arm of which is pi oted to apush button 15, protruding a httle beyond the inner face of the door.Under the action of gravitation, the rod 11 falls automatically down infront of the projection 10 and prevents the rotation of the innerhandle9, so that the door cannot be opened from the inside unless the button15 be pressed by one hand to raise the rod 11, is acting on the handle9. Y

16 designates a spring which acts on the member 8 in such a manner as toraise the handle 9 when left tov itselfand 17 indicates The position ofthe latch is indicated at the outside by the handle. 6 and at the insideby an index 18 integral with the spindle of such handle.

In order to prevent the door from being 0 ened from the outside, the'lock is provlded with a locking device called a service stopper,comprising a cam 19 secured on the spindle of the outer handle 6 and arotary abutment 20 which, on being set up straight as shown in thedrawing, engages in a corresponding slot in the cam, so as to preventany rotation of the latter and hence the opening'of the lock.Suchabutment has a square projection 21 which allows of it bein turnedfrom the-outside bymeans of "a suitable keyfl Its rotation" is limitedin a projection on; said knob spindle, a rod movable on the door andoperable to engage said projection when the inner handle 1s in latchprojecting position, a bell crank lever connected with said rod, and alever-actuating device disposed at .a point remote from r having alatch, inner and outer handles for independently operating said latch,vmeans for locking said inner handle in latch pro- 7 jecting position,releasing means forsaid locking means located in a plane above the look,a locking device for the outer handle comprising a cam secured to theouter handle, a rotary abutment positioned to be engaged by said camwhen said outer handle is in closed position, and key actuated means (insaid abutment for releasing said outer handle.

In testimony, that I claimthe foregoing as my invention I-have signed myname in presence of two subscribing witnesses.

CEL BAZILLE.

Witnesses H. C. 60m, Maomw Roux.

